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CSS CSS Basics (2014) Understanding Values and Units Pixels and Percentages

Posted by Ahmed Mohamed Fouad
Ahmed Mohamed Fouad
11,735 Points

misunderstanding

so what's the difference between 

.title span {

}

and

span .title{

}

and

span.title{

}

1 Answer

Rich Zimmerman
Rich Zimmerman
24,063 Points
Rich Zimmerman
Rich Zimmerman
24,063 Points

Calling elements with spacing like your first 2 examples will look for the last element you describe but it has to be a descendant of the first (or any) element(s) before it. so

span .title {}

Looks for an element with the 'title' class that is a descendant of a span element, like

<span>
  <a class="title"> </a>
</span>
// or
<span>
  <li>
    <a class="title"> </a>
  </li>
</span>

The other example works the same way, it looks for a span element that is a descendant of an element with the class "title"

Your third example, chaining things together like that will look for an element that means those conditions

span.title {}

looks for a span element with the class of 'title'

<span class="title"> </span>
// but not this
<span>
  <a class="title"> </a>
</span>
Ahmed Mohamed Fouad
Ahmed Mohamed Fouad
11,735 Points

thanks bro, that's very clear answer